Window-locking device



Oct. 5, 1926.

M. J. SASC-SEN WINDOW LOCKING DEVICE` 4 sheets-sheet 1 Filed May 2'6, 1924 Oct. 5 1926.

M. J. SASGEN WINDOW LOCKING DEVICE 4 Sheets-Sheet 2 Filed May 26 1924 M. J. SASGEN WINDOW LQCKING DEVICE Filed May 2e 1924 4 Sheets-Sheet @es Y Oct, 5 1926.

1,601,773 M. J. sAsGEN v WINDOW LOCKING DEVICE Filed May 26 1924 4 Sheets-Sheet 4 Q15 /ig 7 umlnlnmimlmlm Fatented @ce 5, 1926.

ParENT orifice,

MICHAEL if. sassari, or Cercano, ILLIN PANY, or orrioaeo, ILLIrnI e., a oe'nroan'rron or ILLINOIS.

assrenon To ern-AND SPECIALTIES CoirwINDoW-LOCKING iDiiVIeii.v

Application filed May 276, 1924. Serial No. 715,944.

invention relates to improvements in devices for engaging two relatively movable members, such as two associated window sashes to prevent relative movement@ in other words, my invention relates to such window locks particularly adapted to lock the two sashes in partly open condition and prevent their being opened further whilepermitting them to be readily closed or shut. Such locks are best placed upon the top bar ot the lower sash in position to engage the upper sash, and frequently in such position le device is out of reach iron` the floor, w cular-ly when the lower sash is raised, ano. it is a particular object of my invention to provide means arranged to permit the operation oiC the lock from a lower point. .d 'turt er feature relates to` simple means toi yieldingly maintaining the lock in lock-` position and a simple hold back adapter io be arranged for holding the lock out o1' loclling position, so that the window can be readily fully opened.

Further ,-eatures oi' importance relate to the construction or' parts out of thin sheet metal and the strengthening or' such parts, and also the mounting and application oi' the ice, to reduce and eliminate diiiiculties ot' ication, and to reduce the 'possibility of strut being surreptitiously lifted.

till other advantages and improvements in conjunction with the accompanying wings forming part of this specilication i i which1- ure 1, is a ir gmentary elevation of a equipped n ,uh one o't my improved locks;

' fragmentary vertical section' '"2 oi Figure l:

n enlarged detail vertical sec- 3-3 of Figure 2;

sin'iilar horizontal section on "raginentarv oia Figure l1.; if; a horizontal section on the line 1e 2, showing a top plan view oi vertical section Fir become apparent from the specification Figure 9, is' a fragmentary horizontal section on the line 99 of Figure 2;

Figure 10, is' a fragmentary plan view of the upper end 'of the operating rod before' it is formed up;

Figure 11, is an enlarged detail fragmentary section on the line 11j-11 of Figure 2;

Figure `12. is an enlarged fragmentary horizontal section on the line 12-12 of Fig- Figure 13, is a fragmentary elevation sirnilar to Figure 1 and showing a locking device applied to a lower sash, having upper pro- 'je'ctingparts on its top; p

Figure 111, is a fragmentary vertical section on the line 11-11 01"' Figure 10;

Figure 15, isl a plan section on the line 15-15 of Figure 13V; Y y

Figure 16 is a tragmentaryvertical sec# tion substantially on the line 16-16 of Figure 15;

Figure 17, is a fragmentary' horizontal section on the line 17`--17 of Figure 13;

Figure 18, is a plan View of a blank'ed out bracket; n y i Figure 19, is a perspective View of one of the brackets formed as a left hand bracket; and

Figure 20, is a view similar to Figure 19, but showing the bracket formed up as a right hand bracket.

In said drawings, 2O illustrates an ordinary window having an upper sliding sash 21and a lower sliding sash 22. Y

I provide a window lock 23 which is secured upon the top surface of the top bar 24 of the lower sash 22 and above one of the side bars 25 thereof. lVhile I have shown the lock at the left side of the window, it can be placed at the right side as well. The lock comprises a strut 26 pivotally mounted at its lower end upon a bracket 25 secured tothe bar 24 of the lower sash. The strut is pivote'd to Swing from and toward the upper sash and is curved edgewise on a suitable radius, so that its free end 27 will lie practically flat against the facev of the side bar of the upperv sash. The free end 27 is covered by a rubber shoe 2S which is somewhat yielding and allords an excellent rictional grip of the upper bar and eifec tually preventsthe' upward sliding 'of the strut; Preferably the'strut'is'made oftwo pieces 29 ant 30 connected by two screws 31 and provided with eXtra holes, so that the strut can be readily lengthened or shortened to accommodate windows having bars of different dimensions. It will beobvi-A ous that when the strut is in locking position, as shown in full lines, Figure 2, it will prevent the raising of the lower sash and likewise the lowering of the upper sash; in other words, prevent the two sashes moving towards each other. l have also indicated the lower sash as raised, in dotted lines, and the strut in locking position thereon, and it is obvious due to the inclination of the strut that the lower sash can be pulled down but not raised further. To raise the lower sash or lower the upper sash it is necessary to raise the strut with its free end free of the upper sash, as shown in dotted lines, Figure 2. l/Vhen the strut is thus raised either sash can be freely moved up and down. For convenience in thus lifting the strut, particularly on relatively high sashes, l provide an elongated operating rod 32, preferably in the form of a light member formed up out of sheet metal into U-shapein cross-section to make it stiff and which extends down along the side bar 25. The upper end of the bar 22 is pivoted to the free end of a short arm 33 extending out horizontally from the pivoted end of the strut, whereby the strut is made in the form of a bell-crank. By pulling down on the operating rod the strut is swung up and freed from contact with the upper sash. The lower end 34 of the rod 32 is guided in the upper arm 35 of a U-shaped bracket 36 secured to the side bar by two screws 37. The upper arm is provided with a suitable guide opening for the lower end 34 of the bar 32, and the extreme lower end 33 of the bar 32 if flattened and bent out at right angles to form a finger hold for pulling the rod down. The rod is normally held at the upper limit of its movement with the strut in Contact with the upper sash by a c mpression spring 39, having its upper end projected into a hole 40 in the bar and its lower end seated on the arm 35. The lower arm 41 of the bracket 36 projects out beneath the bent end 38 of the rod and has a bail 42 pivotally mounted thereon to swing up from its horizontal position, as shown in Figure 2, to an upright position, as shown in Figure 5. In this latter position it is adapted to engage over the bent end 38 of the rod 32, and it is of such a length that the rod has to be pulled down to free the strut from the upper sash before it can be engaged by the bail. TVhen thus engaged the rod cannot rise to engage the strut with the upper sash. rlhis hold-off is useful in holding the lock in inoperative position when it is desired to move the sashes up and down freely, as in cleaning the windows or opening them wide. When it is desired to set the lock again it is merely necessary to pull the rod Cown slightly and swing the bail 42 off of the end 38.

To pivotally mount the bail 42 on the arm 41, I preferably form the middle portion of the arm upwardly, as shown at 43, thus forming vertical side walls 44 in which l provide opposed openings 45 to receive the free ends 46 of the bail which have been bent inwardly and facing each other. In assembling the parts the ends of the bail are sprung into the holes 45 and the bail is normally supported in horizontal position by the side parts of the arm 41. llhe struck up center portion 43 of the arm 41 runs back into the back wall 47 of the bracket 36, and this distortion of the metal greatly stiffens the arm 41. ln a similar manner the bent out end or foot 38 on the rod 32 has its central portion 48 formed up, and which formed up part merges into the adjacent wall of the rod 32, thereby greatly stiliening this finger piece and eliminating the tendency to bend and break. The bracket 27 upon which the strut 26 is pivotally mounted comprises a flat base portion 49 provided with two upstanding parallel ears 50 at the rear end of the base and between which the strut 26 is mounted. TheV base 49 is widened out at its forward end to provide two laterally extending ears 51 for receiving the fastening screws 52. The screws 52 can thus be arranged out from under the strut 26 in such position that they can be engaged by a screw-driver without the necessity of first removing the strut, the screwdriver readily passing down along side of the strut in the fastening operation. Likewise the base 47 of the bracket 36 is widened out to receive the fastening screws 37 and permit the convenient and ready securing of the bracket.

As mentioned hereinbefore, the rod 32 is preferably formed up out of sheet metal. It is first blanked out, then formed into a rod-like member` having a U-shaped crosssection, as best shown in Figures 9 and 14. rlhe upper end this member is provided with two parallel ears 53 and 54 spread apart to receive the arm 33 of the strut 26 between them. lVliile the hlank is still in flat condition, as shown in Figure l2, the ear is perforated to provide a hole 55 large enough to receive the body 56 of a screw pivot 57 for connecting the rod to the arm. rl`he other ear 54 is also provided with a hole 58 in position to be brought into alignment with the hole 55 when the rod is formed. This hole 58 is small enough so that the metal surrounding it can be formed outwardly, as shown at 59, Figure 13, and provide an opening of suitable diameter to be internally threaded to receive the CLI dal

threaded end of the pivot screw 57.v VTheA rod 32 is formed up of quite thin sheet metal, and I have devised this novel inan' ,uentlv a saace indicated at 24 on Fic# ures 6 and 7 which when the lower sash is raised, might permit the upward projection of a thin instrument between the two sashes from .the outside for the purpose of lifting the strut and thus lpermit the lower sashto be raised further. To prevent this surreptitious lifting of the strut, I` pro-y vide a guard plate 60' arranged beneath the bottom plate a9 of the bracket 25. is window bars are ofv different dimensions and it is desirable that the inner end of the bracket 25 be flush with the inner face of the lower sash, for the proper setting and operation ofthe device, I provide the guard plate 60 with two elongated openings 61 extending longitudinally of the plate and in position to permit the placement of the screws 52 which secure the bracket 25 to the sash. By this means, regardless of the relative dimensions of the window and the parts of the device, I can project the guardingV end 62 of the plate 60 in close to the inner face'of the side bar 58 of the upper sash in proper guarding position. j

In igures 13 to 20 inclusive, I have illustrated a bracket which I use when applying lmy device to a lower sash, which has curved projections 63 arising above the top bar 2a of the lower sash and in line with theside bars 25 of the lower sash. In order to apply my window lock to such conditions, I provide a bracket member 61, preferably made of sheet metal and formed to present a horizontal part 65, to receive the bracket 25 formed with a downwardly extending part 66 which is adapted to lie flat against the inner face 67 of the window sash projection 63. The part 66 is provided with one substantially centrally arranged ,hole 68 adjacent to its lower end to receive a holding screwV 69, and with a second hole 70 near one edge to receive a second holding screw 71. The horizontal part 65 is provided with a hole 72 at one edge to receive a holding screw 73, and this part is also provided with holes 74T which are preferably threaded to receive screws 75 for clamping the bracket 25 upon the bracket 64e. Thehorizontal base plate part, is lined in relation to the sash by the front part 66 which contacts the"l inner edge projection @"6 to accommodate the screw hole 72, and this *hole is adjacent to the same edge of the bracket as the hole 70 in the part 66. 'As best shownin Figure 16, the' edge of the part 65 which contains the screw hole 72 is curved up slight-ly to match the curving of the top of rthe projection 63. Thehole 70, being arranged near the left-hand edge of the part 66 in a left hand bracket, is in position so that the screw 71 will be vreceived in the bracket 63.

To stiften up the base part-.65 to properly sustain the locking strain without being bent down, I preferably provide a brace part 77 which is integral with the vertical part 66 and is adapted to be bent around to lie under and contact withthe base part 65, as best shown in Figures 19 and 2O.y

In the manufacture of such devices the initial cost of tools and dies is an important matter and `if this initial cost can be reduced it is of advantage. .In applying my improved lock to different situations they must be capable of being placed on either the left hand, which is usually preferable or on the righthand. In order to place locks on sashes having` the curved projec` tions 63, the brackets 6amust be made both left hand and right hand. The bracket of my invention fulfills this requirement, for I am enabled by means of one blankingdie to blank out the brackets and then to make either left or right hand formed up brackets from the same blanks.

In Figure 1S I'have shown a bracket in flat blank form as it leaves the blanking die. In Figure 19 I have shown a formed up left hand bracket, and in Figure 2O a similar right hand bracket. If the base part 65 is formed over in brace part 77 turned inder it, one form of bracket is produced, such as the bracket shown in full lines, Figure 1S), and if the base part A65 is turned over in the opposite direction and the brace part 77 turned under it, as shown in dotted'lines, Figure 19, the right hand bracket, as shown in Figure 26, results. There is not an extra hole or an eXtra part, but star ing with identica-l blanks the iinishedbracket is either left hand or right hand, depending upon its manner of formation. This feature greatly reduces the costv of manufacture of these parts.

t will now be clear that the strut of the window lockl of my invention can readily be lifted't'o free the Sashes for relative move- [lil one direction and the ll l) ment, that the normal action of the lock is to prevent relative movement or" the sashes t ward each other, while leaving them tree iior window closing movement, and that the lock can readily be arranged and held out et locking condition when desired.

urther, that the device is so constructed and the parts so formed that they can be made by the usual manufacturing processes in large quantities and at relatively low cost. Also, that the strut is guarded against being lilted from the outside by a thin instrument inserted up between the sashes.

lt should be understood that while the drawings illustrate one, the preferred, torni of my invention, my invention is not to be limited on confined to the specific details oi construction shown. and described.

l claim:

l. A window lock, comprising` a strut adapted to be pivotally mounted on a lower sash to swing over into locking engagement with the upper sash, a dependent rod tor manually lifting the strut, and spring means i,fieldingly retaining the rod raised and the strut in locking position.

2. A window lock, comprising a strut adapted to be pivotally mounted on a lower sash to swing over into locking engagement with the upper sash, a dependent rod ior manually lifting the strut, a manually operable strut lifting rod dependent therefrom, and a spring engaged with the rod and normally yieldingly holding the rod raised and the strut in locking position.

3. ln a evindow lock oi' the kind described and including a pivoted locking strut, spring means yieldingly normally holding the strut in locking position, and means for manually setting and holding the strut in non-locking position.

ln a window lock ot the kind described, a strut pivotally mounted at one end, a yielding contact shoe on its tree end, a dependent operating rod for lifting the strut out el locking position, means for yieldingly retaining the strut in locking position, and means :tor setting and holding the operating rod with the strut in non-locking position.

5. In a window lock, a strut adapted to be pivot-ally mounted on the top of a lower sash to swing over into locking contact with the upper sash, an ope ating rod dependent from the locking ustrut and adaptedto be pulled down to lift the strut out oir' locking position, spring means for yieldingly retaining the strut in locking position, and hold od means for engagement with the operating rod to retain the same pulled down and the strut out oi' locking position.

6. In a window locking device of the kind described, an operating rod adapted to be pulled down to unlock the device, a spring for normally 1nolding the rod at the upper limit of its movement, a lateral projection on therod, a bail adapted for engagementover said projection to hold the rod pulled down, as and for the purpose speeilied.

'7. ln a window lock of the kind described, adependent operating rod, a fixed guide for the lower end oiE the rod, the extreme lower end ol" the rod bent out to Yform a finger hold, a guide bracket i'or the lower end oiPA the rod, a push spring engaging the rod and the bracket for normally holding the rod at the upper limit oi its movement, a bail pivotally mounted on the bracket and adapted to be swung up over the bent out lower end oi the rod to hold it pulled down against the action of the spring, as and for the purpose specilied.

d. ln a *indow lock, a locking lever pivoted kto the lower sash and adapted to engage the upper sash, and a guard plate secured to the lower sash beneath the lever and adapted to project over the lower bar ot the upper sash and substantially into contact with the side bar oi' the upper sash, as and for the purpose speciiied.

9. ln a window lock, a locking strut pivoted to the lower sash and adapted to engage the upper sash, a guard plate adapted to be secured to the lower sash, together with the strut support, and adjustable independent o the strut support, from and toward the upper sash, as and for the purpose specilied.

l0. ln a device ot the kind described, an operating rod formed up out ot sheet metal, one end formed with two parallel ears for connecting it to another part, one ear provided with an opening for receiving the bodjy7 part of a screw pivot, the other ear provided with a smaller opening with a surrounding iiange formed up around the opening and provided with an interior screw thread tor receiving the threaded end oli a screw pivot.

ll. ln a device of the kind described, a member made of thin sheet metal and having a part extending at substantially a right angle to the bony thereof, the middle portion oi' said part being distorted out of its plane, and said distorted portion merging into the body part, as and for the purpose speeilied.

l2. ln a device oit the kind described, a rod-like member formed or thin sheet metal formed into .a U-shaped cross-section, the body part at one end extending beyond the sides and bent oli at substantially a right angle to form a linger hold, the middle portion of the linger hold being huinped up longitudinally, and said humped up formation merging into the body part of said member, as and for the purpose specified.

i3. rEhe improven'ients herein described, comprising a strut device adapted to be Vsecured upon the top of a lower sash to engage the side bar of an upper sash, in combinationwith an angle bracket adapted to be secured to a curved projection of the lowerl sash, and to provide a horizontal foundation for said device.

14. The. improvements herein described, comprising a strut device adapted to be secured upon the top of a lower sash to engage the side bar orP an upper sash, in combination with an angle bracket adapted to be secured to a. curved projection of the lower sash, and to provide a horizontal foundation for said device, and a guard plate adapted to be secured between the strut device and said bracket for projection toward the upper sash, as and for the purpose specied.

15. The improvements herein described, comprising a. strut device adapted to be secured upon the top of a lower sash to engage the side bar of an upper sash, in combination with an angle bracket adapted to be secured to a curved projection of the lower sash, and to provide horizontal foundation for said device, the angle bracket having a bent down part adapted to be secured to the inner face of the window sash projection, and said horizontal part provided with spaced apart holes for receiving the astene s for securing` the strut device thereon, and by means of which the strut device can be secured in different positions relatively to said angle bracket, as and for the purpose speciiied.

16. The improvements herein described,

comprising a strut device adapted to be secured upon the top of a lower sash to engage the side bar of an upper sash, in combination with an angle bracket adapted to be secured to a curved projection of the lower sash, and

to provide a horizontal foundation for said device, the angle bracket having a bent down part adapted to be secured to the inner face oi the window sash projection, and a bendable projection on one edge of the bent down of the other parts adapted to be bent to form a brace between the two, the two first mentioned portions adapted to be bent in either direction to form an angle bracket and the third portion adapted to be bent to s'erve as brace between the other two, as and for the purpose specified.

In testimony whereof, I have hereunto set my hand, this 3rd day of May, 1924.

MICHAEL J. SAS GEN. 

